Chassis

The router chassis is a rigid sheet metal structure that houses the other hardware components. The chassis is 17.5 in. (44.5 cm) wide and 21 in. (54 cm) deep. The chassis height of 14 in. (36 cm) enables stacked installation of five M20 routers in a single floor-to-ceiling rack. For more information, see Rack Requirements.

The two front-mounting brackets or center-mounting brackets (one on each side) extend the chassis width to 19 in. (48.3 cm).

Figure 1 and Figure 2 show front and rear views of the router chassis.

Figure 1: Front of Chassis

Figure 2: Rear of Chassis

The chassis includes the following electrical safety components:

• Two electrostatic discharge (ESD) points (banana plug receptacles), one front and one rear, as shown in Figure 1 and Figure 2
• 1/4–20 UNC grounding studs located above the Routing Engines, as shown in Figure 2

Warning: Before removing or installing components of a functioning router, attach an ESD strap to an ESD point and place the other end of the strap around your bare wrist. Failure to use an ESD strap could result in damage to the router. The router must be connected to earth ground during normal operation. For further safety information, see Safety and Regulatory Compliance Information.

Table 8 summarizes physical specifications for the router chassis.

Table 8: Chassis Physical Specifications